Improvement in hinges



T. M. FOSTER.

Hinge.

No. 223,127. Patented Dec. 30, I879.

Invento m;

UNITED STATES PATENT OFFICE.

THOMAS M. FOSTER, OF UNION CITY, PENNSYLVANIA.

IMPROVEMENT l N HINGES.

Specification forming part of Letters Patent No. 223,127, dated December 30, 1879; application filed October 25, 1879.

' To all whom it may concern:

Be it known that I, THOMAS M. FOSTER, of Union City, in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Butt-Hi1] ges; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure l of the drawings is a representation of a face, partly in section, of my hinge. Fig. 2 is a detail view, and Fig. 3 is also a detail view.

My present invention relates to that class of butt-hinges known as rising-butts, in which the leaf which is secured to the door traverses up and down upon a screw-pintle.

The object of my improvement is to construct such hinges so that a door or shutter maybe readily removed from the casing to which it is hinged without detaching the hinge-leaves from either the casing or the door.

To this end I form the screw-pintle G with a plain shank portion, 0, at one end, which may be either square or of other rectangular shape in cross-section, and I form one of the brackets a of the hinge-leaves with a socket corresponding to the shape of the screw-pintle shank, so that when fitted therein it will be keyed against rotation. The bracket b of the remaining leaf is recessed and screwthreaded internally, so as to fit upon the screw part of the pintle. The leaf A, to which bracket 1) belongs, will consequently ascend upon the pintle when turned upon the same. The pintle fits in the bracket a of leaf B, so that it may be withdrawn therefrom when desired, and to remove a door from the casing, to which it is hinged, it will only be necessary to open and then lift it sufficiently to lift the pintle from the lower bracket in which it is fitted, as heretofore described. By then turning the pintle round it maybe unscrewed from the bracket of the leaf which is secured to the door, and its rectangular end again seated in the lower bracket. The pintle may, however, be left in the upper bracket, and be thereby held by the same, when preferred.

By turning the pintle in the upper bracket before fitting its lower end in the lower bracket, the distance between the two brackets, when the leaves are open, can be regulated so that when they are brought together or closed they will be in proper position relatively to each other. y

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

In a butt-hinge, the pintle formed with a screw-threaded portion working in a bracket of one of the leaves, and a plain rectangular portion fitted or keyed against rotation in a bracket of the remaining leaf, the said leaves and spindle being detachable from each other, substantially as shown and described, and for the purposes set forth.

In testimony that I claim the above I have hereunto subscribed my name inthe presence of two witnesses.

THOMAS M. FOSTER.

Witnesses:

G. B. J onNsoN, WM. B. BURNAM. 

